Performance data
The performance data is obtained from a clinical study, performed according to American National
Standard ANSI Z80.10-2003 and International Standard ISO 8612.2 for tonometers. The study was
performed ain the Department of Ophthalmology, Helsinki University Central Hospital. In the study,
158 patients were measured. The mean paired difference and standard deviation (Goldmann-Icare)
were -0.4 mmHg and 3.4 mmHg. A scattergram and Bland-Altman plot of the results is shown below.
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